Conveyer roller



E. E. MOORE CONVEYER ROLLER Jan. 28, 1930.

Filed Oct. 24, 1928 5 Sheets-Sheet 1 JQwenZOT:

I Patented Jan. 28, 1930 "UNITED STATES PATENT OFFICE EDWIN EARL MOORE,OF GARY, INDIANA, ASSIGNOR TO AMERICAN SHEET AND TIN PLATE COMPANY,A'CORPORATION OF NEW JERSEY CONVEYER ROLLER Application filed October24, 1928. Serial 1%., 314,632.

This invention relates to conveyer rollers and, while not limitedthereto, rela-flas more particularly to conveyer rollers for use in packheating furnaces .and the like, where the rollers are subjected tointense heat for long periods, and has for its object the provision ofrollers of this type which'will withstand the intense heat of thefurnaces and at the same time will be sufficiently rugged to withstandthe strains to which they are subjected in use.

Heretofore conveyer rollers of this type for use in pack heatingfurnaces have been composed entirely ofmetal and metal alloys adapted towithstand high temperatures. However, due to the fact that'heatingfurnaces, such as pack heating furnaces, are subjected'to continuoushigh temperatures for long periods of time the life of such rollers isrelatively short and, therefore, the use of metal rollers isunsatisfactory since the furnace must be taken out of service to replacethe rollers.

The refractory rollers of this invention have a relatively long life ascompared with the best metal alloy rollers that are known in the artand, therefore, overcome many of the objections to the metal rollers.

Inthe drawings:

Figure l is a sectional plan of a pack heat- .ing furnace of the classto which this nvention is applied.

Figure 2is an enlarged fragmentary sectional plan showing one form ofthe rollers of this invention.

Figure 3 is a sectional elevation taken on the line' IIIIII of Figure 2.

Figures 4 and 5 are sectional plans of modified forms of rollersconstructed in accordance with this invention.

Referring more particularly to the drawings, the letter A designates thepack heating furnace as a whole, which has a side combustion chamber 2and a heating chamber 3.

series of conveying rollers B which are journaled in' bearings 4 andhave one end of their I shafts extended and provided with gears 5 whichare meshed with gears 6 on a driveshaft 7.

The heating chamber 3,is provided with a The rollers B are composed of arefractory body portion and metal stub-shaft portions 8. In Figures 2and 3 a preferred form of diskroller is shown as comprising a centralhollow refractory shaft 9 of rectangular cross-section and having aplurality of refractory disk members 10 mounted thereon and secured tosaid shaft and to each other by refractory cement 12. The shaft 9projects materially beyond the endmost disks 10' to receive the metalstub-shafts 8 which are provided with enlarged recessed ends 14 ada tedto fit over the projecting ends of the sha ts 9.

In Figure 4 I have shown a slightly modified form of refractory roller Bin which the 3 body portion is formed in one piece. In this constructionthe body portion is provided with alternate circumferential enlargements15 and depressions 16. The enlargements 15 form, ineffect, disks tosupport the packs '7 being conveyed. The ends of the body portions arereduced, as at 17, to form squared shaftportions 18 on which the metalstub- Q shafts 8 are mounted.

In Figure. 5 I have shown a still further modified form of refractoryconveyer roller B, which com rises-a plain cylindrical body portion 19havlng its ends reduced, as at 20, to form squared shaft portions onwhich the metal stub-shafts 8 are mounted.

In each of the several forms of refractory conveyer rollers B it will benoted that the refractory body portions extend through the heatingchamber 3 and into the walls thereof so that the metal stub-shafts 8 areout of direct contact with the flame and intense heat.

The novel roller construction of this invention provides a router whichwill not be readily destroyed by the intense heat to which it issubjected, and thereby greatly increases the efliciency of the furnace.

While I have shown and described certain specific embodiments of myinvention it will be understood that I do not wish to be limitedthereto, since various modifications may be made in design, constructionand shape of the rollers without departing from the scope of myinvention as defined in the appended claims.

v I claim:

1. In a continuous heating furnace conveying rollers arrangedtransversely of said furnace, said rollers being composed of arefractory body portion extending entirely across said furnace and intoopenings in the side walls thereof, and metal stub-shafts secured to theends of said roller bodies and journaled in suitable bearings to supportsaid rollers.

2; In a continuous heating furnace conveying rollers arrangedtransversely of said furnace, said rollers being composed of arefractory body portion extending entirely across said furnace and intoopenings in the side walls thereof, squared stub ends on said bodies,and metal stub-shafts having socket ends fitted over said squared stubends of said bodies, said metal stub-shafts being journaled in suitablebearings to support said rollers.

3. In a continuous heating furnace conveying rollers arrangedtransversely of said furnace, said rollers being composed of arefractory shaft, and refractory disks secured on said shaft, said shaftextending entirely across said furnace and into openings in the sidewalls thereof, and metal stub-shafts secured to the ends of saidrefractory shaft and journaled in suitable bearings to support saidrollers.

In testimony whereof, I have hereunto set m hand.

y Q EDWIN EARL MOORE.

